Bridge slag blocking wall and vertical wall construction joint separation tool and construction method

Abstract

The invention relates to the technical field of bridge engineering, and discloses a bridge slag blocking wall and vertical wall construction joint separation tool and a construction method.The bridge slag blocking wall and vertical wall construction joint separation tool comprises a separation plate A and a separation plate B which are transversely spliced, and the inner end face of the separation plate A and the inner end face of the separation plate B are both concave faces or convex faces with certain dip angles; the concave face or the convex face is composed of at least one parallel groove or rib in the length direction of the end face rectangle. And the grooves of the concave surfaces of the inner ends of the partition plates A and the convex edges of the convex surfaces of the inner ends of the partition plates B are in one-to-one correspondence and are tightly engaged with each other, or the convex edges of the convex surfaces of the inner ends of the partition plates A and the grooves of the concave surfaces of the inner ends of the partition plates B are in one-to-one correspondence and are tightly engaged with each other. According to the construction joint partition plate of the spliced structure, the partition plate is pulled out from the two sides when being dismantled, the friction surface between the partition plate and wall body concrete can be effectively reduced, the wall body concrete structure is better protected, and irreversible damage such as edge missing and corner falling and scratches is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to a bridge slag retaining wall and a vertical wall construction joint separation tool and a construction method. Background Art

[0002] At present, the construction joints and fractures of the slag retaining walls and vertical walls of the bridge ancillary projects are usually separated by inlaid bamboo plywood or foam plastic boards and other materials. After the ground surface concrete is poured, the staff will use fine steel chisels and other tools to remove and clean the fracture materials one by one. Although this method can quickly complete the construction of the slag retaining walls and vertical walls, it is easy to cause irreversible damage to the finished concrete structure such as chipping, scratches, etc. during the removal of the fracture materials. Summary of the invention

[0003] In view of the deficiencies in the prior art, the technical solution adopted by the present invention to solve the technical problems is: a construction joint separation tool for a bridge slag retaining wall and a vertical wall, comprising a partition A and a partition B which are horizontally spliced, the inner end faces of the partition A and the partition B are both concave or convex surfaces with a certain inclination angle, the concave or convex surface is composed of at least one parallel groove or ridge along the direction of the rectangular length of the end face, the groove of the inner end concave surface of the partition A corresponds one-to-one with the ridge of the inner end convex surface of the partition B and they are tightly engaged with each other, or the ridge of the inner end convex surface of the partition A corresponds one-to-one with the groove of the inner end concave surface of the partition B and they are tightly engaged with each other.

[0004] Preferably, the cross-sectional shape of the groove or ridge is a trapezoid, and the inclination angle refers to the angle between the inner end surface of the partition and the vertical direction, the vertical direction is the length direction of the partition, and the inclination angle ranges from 105° to 115°. An obtuse angle of about 110° at the splicing position is more conducive to the smooth removal of the partition.

[0005] Preferably, the thickness of the partition A and the partition B matches the width of the construction joint.

[0006] Preferably, an auxiliary part for removing the partition is further included, the auxiliary part includes a fixed seat and two clamping plates arranged opposite to each other, an opening is provided on one side of the fixed seat, the clamping plate is slidably installed in the opening, sliding plates are provided on both sides of the clamping plate on the fixed seat, a channel is opened on the sliding plate, pins are provided on both sides of the clamping plate, and the pins are arranged in the channel.

[0007] Preferably, an operating rod is rotatably connected to the side of the fixed seat away from the opening, a pull rod is connected to the inner end of the clamping plate, the end of the pull rod away from the clamping plate passes through the fixed seat and is connected to a connecting block, a waist-shaped through hole is provided on the connecting block, and a limiting pin is provided in the waist-shaped through hole for connecting the operating rod and the connecting block.

[0008] Preferably, a plurality of through holes are respectively formed at the outer ends of the partition A and the partition B, and positioning columns matching with the through holes are formed on the inner side of the clamping plate.

[0009] The present invention also discloses a construction method of a bridge slag retaining wall and a vertical wall construction joint separation tool, comprising the following steps:

[0010] S1. Roughen the bottom beam surface of the slag retaining wall and vertical wall of the bridge auxiliary project, tie the steel bars and support the side form of the wall after the roughening is completed;

[0011] S2. Install the partition tooling at the construction joint position, and pour the wall concrete after the wall side formwork is integrally reinforced with the partition A and the partition B;

[0012] S3. After two days of curing with formwork, remove the wall formwork and partitions A and B. After the removal is completed, continue to cure the wall concrete.

[0013] Preferably, in step S3, partition A and partition B are removed by first extending the partition between the two clamping plates, moving the operating lever, and the pull rod drives the clamping plates to slide along the channels on the sliding plates, thereby adjusting the vertical distance between the inner sides of the clamping plates. After the positioning column completely enters the through hole and clamps the partition, the fixing seat is used in conjunction with the horizontal telescopic device to pull out the partition.

[0014] Preferably, the wall concrete in step S3 is maintained by using a layer of geotextile and a layer of plastic film.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. Use a spliced ​​structure for the construction joint partitions, which can be pulled out from both sides during dismantling. This can effectively reduce the friction surface between the partitions and the wall concrete, provide better protection for the wall concrete structure, and avoid irreversible damage such as chipping, scratches, etc.

[0017] 2. The contact surfaces of partition A and partition B are processed with concave-convex bite, and the surface sealing form is changed to a combination of surface sealing and line sealing, which improves the sealing effect and prevents concrete leakage in the splicing structure, affecting the pouring effect of the wall concrete.

[0018] 3. Through the use of the dismantling auxiliary parts, the partition A and the partition B are pulled out from both sides, the clamping plate fixes the partition, the fixing seat is connected to the external telescopic device, and the partition is pulled outward, which effectively improves the labor efficiency of on-site construction joint construction and reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the separation tooling in the present invention;

[0020] Figure 2It is a structural schematic diagram of the auxiliary component in the present invention;

[0021] Figure 3 It is a schematic diagram of the connection between the connecting block and the clamping plate in the present invention.

[0022] In the figure: 1, fixed seat; 11, opening; 12, operating rod; 2, clamping plate; 21, pin shaft; 22, pull rod; 23, connecting block; 231, waist-shaped through hole; 3, sliding plate; 31, channel. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] like Figure 1 As shown, a construction joint separation tool for a bridge slag retaining wall and a vertical wall comprises a partition A and a partition B which are arranged in a transverse manner, wherein the thickness of the partition A and the partition B matches the width of the construction joint, and the width of the construction joint in the present invention is 2 cm, and the partition A and the partition B are made of steel plates, and the inner end face of the partition A is a concave surface with a certain inclination angle, and the inner end face of the partition B is a convex surface with a certain inclination angle, and the concave surface or the convex surface is composed of at least one parallel groove or ridge along the direction of the rectangular length of the end face, and the cross-sectional shape of the groove or ridge is trapezoidal, and the inclination angle refers to the angle between the inner end face of the partition and the vertical direction, and the vertical direction is the length direction of the partition, and the inclination angle is 110°, and the obtuse angle is more conducive to disengagement during dismantling, and the groove of the inner end concave surface of the partition A corresponds to the ridge of the inner end convex surface of the partition B one by one and they are tightly engaged with each other, and the surface sealing form is changed to a combination of surface sealing and line sealing, which improves the sealing effect and prevents concrete leakage in the splicing structure.

[0025] The partition kit also includes auxiliary parts for removing partitions, such as Figure 2 As shown, the auxiliary part includes a fixed seat 1 and two clamping plates 2 arranged opposite to each other. An opening 11 is provided on one side of the fixed seat 1. The clamping plates 2 are slidably installed in the opening 11, and a fixing pin is provided on the fixed seat 1, which is connected to an external horizontal telescopic device through the fixing pin. The external horizontal telescopic device can use a cylinder, which is pulled out after the auxiliary part clamps the partition to make the partition fall out; sliding plates 3 are provided on both sides of the clamping plates 2 on the fixed seat 1, and a channel 31 is opened on the sliding plate 3. The channels 31 on the upper and lower sliding plates 3 on the same side are long strip grooves arranged opposite to each other, and pin shafts 21 are provided on both sides of the clamping plates 2. The pin shafts 21 are arranged in the channels 31, and the upper and lower clamping plates 2 move along the channels 31 on both sides of each other, so as to adjust the vertical distance between the upper and lower clamping plates 2; an operating rod 12 is rotatably connected to the side of the fixed seat 1 away from the opening 11, as shown in FIG. Figure 3As shown, a pull rod 22 is connected to the inner end of the clamping plate 2, and the end of the pull rod 22 away from the clamping plate 2 passes through the fixed seat 1 and is connected to a connecting block 23. A waist-shaped through hole 231 is provided on the connecting block 23, and a limiting pin is provided in the waist-shaped through hole 231 for connecting the operating rod 12 and the connecting block 23. By setting the waist-shaped hole, when the operating rod 12 rotates, the connecting block 23 can move up and down a certain distance in the groove of the pull rod 22, thereby realizing the translation of the pull rod 22 without causing interference and being unable to move; a plurality of through holes are respectively provided at the outer ends of the partition A and the partition B, and a positioning column matching the through hole is provided on the inner side surface of the clamping plate 2, and the distance between two adjacent through holes is adapted to the size of the fixed seat 1, so that an auxiliary part can be placed at each through hole position, thereby balancing the force on the partition and making it easier to pull out.

[0026] During assembly, first insert the pins 21 of the upper and lower clamping plates 2 into the channels 31 of the sliding plates 3 on both sides respectively, then fix the sliding plates 3 on the fixing base 1 by bolts, and the other end of the pull rod 22 passes through the fixing base 1 and is connected to the operating rod 12 through the connecting block 23.

[0027] A construction method for a bridge slag retaining wall and a vertical wall construction joint separation tool comprises the following steps:

[0028] S1. Roughen the bottom beam surface of the slag retaining wall and vertical wall of the bridge auxiliary project, tie the steel bars and support the side form of the wall after the roughening is completed;

[0029] S2. Install the partition tooling at the construction joint position, and pour the wall concrete after the wall side formwork is integrally reinforced with the partition A and the partition B;

[0030] S3. After two days of curing with formwork, the wall formwork and partitions A and B are removed. After the removal is completed, the wall concrete is continued to be cured by using a layer of geotextile and a layer of plastic film.

[0031] In step S3, partition A and partition B are removed by first extending the partition between the two clamping plates 2, and moving the operating rod 12. The pull rod 22 drives the clamping plate 2 to slide along the channel 31 on the sliding plate 3, thereby adjusting the vertical distance between the inner side surfaces of the clamping plates 2. After the positioning column 24 completely enters the through hole and clamps the partition, the fixing seat 1 is used in conjunction with the horizontal telescopic device to pull out the partition.

[0032] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A construction joint separation tool for a bridge slag retaining wall or a vertical wall, characterized in that: It includes a partition A and a partition B which are spliced ​​laterally, and the inner end faces of the partition A and the partition B are both concave or convex surfaces with a certain inclination angle, and the concave or convex surface is composed of at least one parallel groove or convex ridge along the direction of the rectangular length of the end face, and the groove of the inner end concave surface of the partition A corresponds to the convex ridge of the inner end convex surface of the partition B one by one and they are tightly engaged with each other, or the convex ridge of the inner end convex surface of the partition A corresponds to the groove of the inner end concave surface of the partition B one by one and they are tightly engaged with each other.

2. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 1, characterized in that: The cross-sectional shape of the groove or ridge is trapezoidal, and the inclination angle refers to the angle between the inner end surface of the partition and the vertical direction, the vertical direction is the length direction of the partition, and the inclination angle ranges from 105° to 115°.

3. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 1, characterized in that: The thickness of the partition A and the partition B matches the width of the construction joint.

4. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 1, characterized in that: The invention also comprises an auxiliary part for removing the partition, the auxiliary part comprises a fixed seat (1) and two clamping plates (2) arranged opposite to each other, one side of the fixed seat (1) is provided with an opening (11), the clamping plates (2) are slidably installed in the opening (11), sliding plates (3) are arranged on both sides of the clamping plates (2) on the fixed seat (1), a channel (31) is opened on the sliding plate (3), and pin shafts (21) are arranged on both sides of the clamping plates (2), and the pin shafts (21) are arranged in the channels (31).

5. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 4, characterized in that: The side of the fixed seat (1) away from the opening (11) is rotatably connected to an operating rod (12), the inner end of the clamping plate (2) is connected to a pull rod (22), the end of the pull rod (22) away from the clamping plate (2) passes through the fixed seat (1) and is connected to a connecting block (23), the connecting block (23) is provided with a waist-shaped through hole (231), and a limiting pin shaft for connecting the operating rod (12) and the connecting block (23) is provided in the waist-shaped through hole (231).

6. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 5, characterized in that: The outer ends of the partition plate A and the partition plate B are respectively provided with a plurality of through holes, and the inner side surface of the clamping plate (2) is provided with positioning columns that match the through holes.

7. A construction method for the bridge slag retaining wall and vertical wall construction joint separation tooling according to claim 1, characterized in that: The following steps are involved: S1. Roughen the bottom beam surface of the slag retaining wall and vertical wall of the bridge auxiliary project, tie the steel bars and support the side form of the wall after the roughening is completed; S2. Install the partition tooling at the construction joint position, and pour the wall concrete after the wall side formwork is integrally reinforced with the partition A and the partition B; S3. After two days of curing with formwork, remove the wall formwork and partitions A and B. After the removal is completed, continue to cure the wall concrete.

8. The construction method of a bridge slag retaining wall and vertical wall construction joint separation tooling according to claim 7, characterized in that: In step S3, partition A and partition B are removed by first extending the partition between the two clamping plates (2), moving the operating rod (12), and driving the clamping plate (2) to slide along the channel (31) on the sliding plate (3) by the pull rod (22), thereby adjusting the vertical distance between the inner side surfaces of the clamping plates (2), and waiting for the positioning column (24) to completely enter the through hole to clamp the partition, and then use the fixing seat (1) in conjunction with the horizontal telescopic device to pull out the partition.

9. A bridge slag retaining wall and vertical wall construction joint separation tool according to claim 8, characterized in that: In step S3, the wall concrete is cured by using a layer of geotextile and a layer of plastic film.

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